I have an old kids bike. It has been in our family for at least 30+ years. However it was left in the rain by the our resisdent bike killer. Its a bloody mess so unless am told otherwise i think its best to buy a new rear wheel

But am unsure the difference between the two sizes. http://www.tredz.co.uk/.Kenda-Kids-12-inch-Tyres_40597.htm

  • Those are not wheel size descriptions that I recognise. Where did you get the terms? Normally wheel size is most easily found by reading off the tyre size. See Sheldon Brown's page for some information on what to look for. – Móż Jul 20 '16 at 21:15
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    I am confused how changing the tire will correct the damage from leaving a bike out in the rain. In my fairly considerable experience with such bikes, the tires will survive quite well, but other components -- chains, cables, bearings -- will suffer due to severe rust. – Daniel R Hicks Jul 20 '16 at 22:54

Those are not sizes, they are both the same size. The K050 and K124 are Kenda's designation for tread pattern.

K124: enter image description here

K050: enter image description here

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